在visual studio 2019中没有python单元测试下的测试

Question

我在VisualStudio2019 (Version16.3.9)中有一个现有的python项目，包含在VisualStudio2017下为unittest.py创建的单元测试。我已经为unittest配置了这个项目，因为这在visual studio 2019中是需要的：

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但是没有显示单元测试。

但我得到了以下错误：

   File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\run_adapter.py", line 17, in <module>
    tool, cmd, subargs, toolargs = parse_args()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 81, in parse_args
    subsub = add_subparser(cmdname, toolname, subsubs)
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\__main__.py", line 26, in pytest_add_cli_subparser
    from . import pytest
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\__init__.py", line 7, in <module>
    from ._discovery import discover
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 31, in <module>
    patch_translate_non_printable()
  File "C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\ENTERPRISE\COMMON7\IDE\EXTENSIONS\MICROSOFT\PYTHON\CORE\PythonFiles\testing_tools\adapter\pytest\_discovery.py", line 15, in patch_translate_non_printable
    translate_non_printable =  getattr(_pytest.compat, "_translate_non_printable")
AttributeError: module '_pytest.compat' has no attribute '_translate_non_printable'

Answer 1

您能否检查“测试”下的输出窗口中传递给run_adapter.py的参数，并确保在那里发现了unittest？

示例

xxx\EXTENSIONS\MICROSOFT CORPORATION\PYTHON\16.0.0\PythonFiles\testing_tools\run_adapter.py discover unittest --output-file xx\Local\Temp\tmpF743.tmp -- . test*.py

另外，pytest是否安装在您的环境中？如果是，哪一种版本？